Improvement in self-regulating gas-burners



Patented May 27 "GL W: THOMPSON.V

Gas Regulator.

UNITED STATES GEORGE W. THOMPSO IMPRQVEMENT IN SELF-R Specificationforming part of Letters P To all whom it may concern- Be it known thatI, GEORGE W. THOMPSON, of New York city, county, and State, haveinvented certain new and useful Improvements in Self-RegulatingGas-Burners; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

To enable those skilled, in the art to make and use my invention, I willdescribe its construction and operation.

`In the drawings, Figure 1 is a vertical section enlarged. Fig. 2 is aview in elevation.

The nature ofmy invention consists in constructing automatic regulatorsfor gasburners, with an air-chamber having communication with theoutside air over the elastic dia phragm, so that the diameter of thediaphragm may be made much less than in the regulator patented toLeftingwell and Thompson, April 2, 1861, thus diminishing almostentirely the shade cast by the regulator.

There have been many attempts to secure a completely satisfactoryselfregulating gasburner, but in all of them imperfections have beendiscovered by continued use. In the regulator patented to me May 1,1860, it was found that unless made with a nicety almost unattainable itwould not prove entirely satisfactory. In the self -regulating gasburnerpatentedto Lefngwell and myself jointly it was found that the greatdiameter of the chamber containing the diaphragm (two to three inches)was an inevitable objection on account of the large shadow thrown by it.In this in vention these and other various objections are overcome, andI have succeeded in making an automatic regulator for gas-burners ofsimple structure, which surely and effectively regulates the 4ecluableflow of gas at the burner under allA variations of pressure from themain pipe.

A is the lower cylindrical screw-cup, which is made fast to thefeed-pipe; a, the packing between the screw-'cup and fixed metallic dia-Y phragm; B, the clamping-ring for securing the diaphragrns in place; C,the air-cup having a smalltube, c, extending up to -the outer surface ofthe outer shell or cup, I); D,the outer shell inclosing the air-cup Cand screwing into the screw-cup A, and to which the burner is attached;E, the fixed metallic diaphragm with l valve-seat o; F, the elasticdiaphragm, of leather, kid, or othersuitablernaterial, secured il Enron.

N, or NEw YORK, N. Y.

EGU LATI NG GAS- BURN ERS.

atent No. 35,402, dated May 27, 1862.

by clamping between clamping-ringB and aircup C; G, the conical metallicvalve, of graduated weight, and valve-stem, secured to d iaphragm F bynuts screwing on valve-stem, or by the device patented to Lefngwell andThompson, above mentioned. e are slots or openings in the clamping-ringB for the passage of the gas from the gaschamber 3 to the annulargas-chamber 4;V 1, the air-chamber, communicating with the outside airthrough the entrance 2 through tube c; 3, the gaschamber; 4, the annulargas-chamber between the air-cup C and the outer cup, D; 5, the openingthrough the valveseat o, and through which the flow of gas from thefeedpipe is regulated by the rise and fall of the valve G.

In the operation of my invention the diaphragm F is of such tension andthe valve G of such graduated weight that at the lowest .pressure (sayhalf an inch) the flow of gas shall just equal the consumptive capacityof the burner. As thegas rushes into the regulator it presses up againstdiaphragm F in proportionto its pressure, thus raising it and the valveG in the same proportion. As the valve G rises with the diaphragm, itdiminishes the size of the opening 5 in the valveseat o, so that whenthe gas is at high pressure the smaller size of the opening 5 will allowno more gas to escape than would escape with a lower pressure and alarger opening. By using the tube c and air-chamber 1, I am enabled touse a smaller and more sensitive diaphragm, the air in said'chambercontributing very materially to the elasticity and efficiency of thediaphragm, as may be p-roven by closing the tube c, when the diaphragmrefusing to lift the valve the gas rushes up through and out of theburner much faster than can Vbe con sumed. The course of the gas isindicated on the drawings by arrows.

Having thus fully described the construction and operation of myinvention, what I claim as new, and desire to secure by Letters Patent,1s

The air-chamber l and entrance 2, in combination with an elasticdiaphragm operating and operating substantially as set forth, and forthe purpose `of regulating the liow of gas at the burner. y

GEO. NV. THOMPSON.

Witnesses:

IsAAo A. BRowNELL, EDW. F. BROWN.

a conical valve, the whole being constructed'

